Lock



M. FORLANDEH.

LOCK.

APPLICATION FILED MN. 25. 1921.

1,398,636, Patented Nov. 29, 192.

3 SHEETS-SHEET l.

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Gttomuq M.4 FoRLANnER.

LOCK.

APPLICATION min JAN. 2:*5,` |921. 1,398,636. Patented Nov. 2 9, 1921.

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"Munn Mm M. FORLANDER.

LOCK. v

APPLICATION FILED IAN. 25. 1921.

1,398,636. l Patentedl .2 21.

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To all what?, it mayconcern:

, UNITED ,STATESPATENT Orme I Monnis FORLANDER, orj NEW vom; iv. Y.

LOCK.

Be it known that I, Morris; citizen of Russia, residing "at'New York, inthe county and State of'New' York, have inf vented certain newandusefulImprovements in Locks, of which the following lis a lfull, clear, andexact speciiication.

This invention relates to locks, and `has for its object te provide ajimmy-proof flock having a vplurality of bolts ofdiiferent types,thereby increasing the security of the fas'- tening.

The invention conteinplatesv they provision of swinging hook-shapedbolts lon the keeper oi a lock, said bolts being `actuate'dfby' a slid'-ing bolt in the lock casing when sa'id'sliding bolt is projected intothe keeper. The hookshaped bolts are adapted to interlock with thecasing` of the sliding. bolt, -thus forming a double' acting lockandkeeper inwhich the sliding andswinging' bolts lare combined.

The arrangement of the bolts is such that a Vburglar cannot saw throughthem jor jimmy the lock.

A 'further object of theinvention is to facilitate the operation ofthehook-shaped 'bolts by the sliding bolt'by giying the latter al step bystepmovement in projecting and `retracting`the same. Another objectisgto adapt the sliding bolt tofbe actuated bysepa'- rate rollbacksarranged lout of alinement von the line III- III of with each other andcontrolled by :different key locks arranged on opposite sides of thedoor. A further object is te increase the sc curity of the'lockvbyhavin'gQthe vcasing for the lsliding bolt overlap and interlock withthe casing for the swinging'bolts.. Other objects will appearasthedescription .proceeds.

The'inventi'oi'i will be first hereinafter defscribed in connection withtheaccOmpany-ing drawings which constitutepartof the speciiicatioinandthen V`more specifically defined inthe claims fat the endcfthedescription.

In the vaccompanying drawings, wherein similar reference characters; arelused ,to designate corresponding parts throughout theseveral-views': 1VFigure 1 is a front elevation ofalockconst ructed substantially inaccordance with ,this invention and appliedto a doorand jamb.Y Y f YFig. 2 is a horizontal section on the line II-II of Fig. 1. F igs.r 3, 4yand 5 aresectional views taken Fig. V2 andv showing i Specification ofLetters Patent. 'Patented NV 29, 1921. Appiiatiqn ;iiediaiiary 25,1921*. sen-Laino. 439,740. i i I different positions ker" the slidingandswingc;

ing bolts l,and lthe mechanism` for reciprocatingvsaid sliding bolt. *Yv ig. is a detailed perspectveview of `the sliding bolt. l 'Y F ig.7 isa detailed-perspective view-biithe tumbler, and.V Fig. 8 is a top planviewof the lockand keeper applied .to the doorand j amb,fthe

latterY ,being shown in section.

In the drawings, 1f designates .a portion of `adoor and 2 The casing 3for the sliding bolt 4 has an angularly extending iiange 5 secured tothe edge of the door by screws. 6 which are consShut. Said casing?) apart ofthe j amb therefor.v

casing for the swinging bolts 9, also' has anV4 angularly extending angesecured -to the edge of the chamber by screwsll which; are alsoconcealed when thedoor is shut. The keeper 8 may also the chamber byscrews V12, but these screws are not necessary to fastensaid-keeper inplace. It will be seen that the screws 6 and 11, which are passedthrough the flanges 5` be secured to the face of and l0, cannot beremoved when tlie'door j lis locked, so that yit isiinpossible for abur-l glarjte open the door when locked by bodily removing either thelock or keeper.

The swinging bolts 9 lare hookshaped,'a`s

shown, and. normally extend in opposite directions from their pivots 13.The inner pivoted ends of said swingingvbolts have vprojecting lugs14Lwhich extend into the path of. the sliding bolt L tand vare adaptedto be engaged by thelatteras it is projected y for swinging the bolts 9out ofthe keeper fand into engagement with slots v15 in ,the LippenV andlower edges of. the casing V5. When released, `the swinging vbolts 9 arerevL16 -connected toma pin 17 in said keeper and @to the bolts 9 at 18.

The siidingboit i has when( i9 gravide@ with a horizontal slot20 intowhicha fixed lug 2l inthe casing. 3 projects forguiding lthe bolt in itsreciprocations andlimiting its '-slot 23- in a tumblerv24 which is pivoted to a fixed-pin 25 inthe casing 3 and yieldingly tracted intothekeeper or casing8 springs pressed upward by a leaf spring 26. Theslot 23 in the tumbler has a pair oflugs 27 and 28 adapted to interlockwith' the lug 22 on the shank of the sliding bolt to prevent the latterfrom being moved except when said tumbler is swung downwardly, as shownin Fig. 4, to move said lugs 27 and 28 out of the path of the lug 22. Asshown inl Figs. 3 and 5, the tumbler 24 normally extends insubstantially horizontal position with its upper edge practically flushwith the upper edge of the shank 19. In said upper edge of the shank 19there are formed four notches, two of which 29 extend only part waythrough said shank, while the other two notches 30 extend entirelythrough the shank.

The sliding bolt is adapted to be actuated by either one of two rollbacks 31 and 32 which are controlled by different key-actuated cylinderklocks 33 and 34. The cylinder lock 33 is mounted on the front Vof thecasing 3 to be actuated from the inside of the door, while the cylinderlock 34 is mounted in the body of the doorso as to be accessible fromthe outside thereof, said lock 34 being connected to the -roll back 32,which is swiveled'on the backplate 35 of the lock casing 3, by aconnecting piece 36, best shown in Fig. 2. The roll backs-31 and 32 arearranged out of alinement with each other, the tooth 37 of the roll back31 being adapted to engage in the notches 29 of the shank of the bolt 4,while the tooth 38 of the roll back 32 is adapted to engage in thenotches 30 in said shank. As shown in Fig. 2, the tooth 38 is wider thanthe notches 29 so that it will not enter them but will only beoperatively engaged with the notches 30.

To facilitate the operation of the swinging bolts 9 by the projection ofthe sliding bolt 4, it has been found advantageous to provide for a stepby step movement of said sliding bolt rather than to fully project it inone movement. Y For this reason, two of the notches 29 are provided tobe engaged by the tooth 37 of the roll back 31, and two of the notches30 are also provided for engagement by the tooth 38 of the roll 'back sothat it requires two revolutions of either of said roll backs to fullyproject or retract the bolt 4. It will be noted that as the tooth ofeither ofthe roll backs is inserted into the corresponding notches inthe shank of thesliding bolt, said tooth will engage the upper edge ofthe tumbler 24 and depress the latter so as to permit the lug 22 on saidshank to pass over first one and then the other of the lugs 27 and 28.Fig. 3 shows the unlocked position of the sliding and swinging bolts,the locked positionl of said bolts being indicated in vdotted lines.Fig. 4 shows the positions of the parts when the tooth 37 of the rollback 31 is engaged with the first one of the notches 29, in whichposition it has depressed the tumbler 24 so asto release the `bolt 4 andhas partially y projected said bolt. Fig. 5 illustrates the positions ofthe parts at the end of one full revolution of the roll back 31. Afurther revolution of said roll back will cause its tooth 37 toengagethesecond notch 29 in the shank'of the bolt v4 in the same manneras it engages Vthe irst notch, Fig. 4, .thereby fully projecting saidbolt to the position illustrated in dotted lines in Fig. 3. TheactuationV of the bolt 4 by the roll vback 32, controlled from the otherside of the door, is the same as just described in connection with theroll back 31 except that said roll back 32 engages the notches 3Qinstead ofthe notches '29 in the shank of said bolt.

The slots ,15' in the upper and lower edges of the casing 3 arepreferably guarded by projections 39 on the front 'of said casing.Projecting lugs 40 are preferablyA formed on the front of the keepr 8toengage iny open* ings 41 'in an extension 42 of the front plate Yofthe casing 3 when the door is shut, thereby further increasing thesecurity of the fastening.

I claim: N 1. The Vcombination with a lock, of a keeper,'a boltoperatively mounted in the lock, and a pair of swinging boltsmounted inthe keeper and adapted to engage opposite edges of the lock. Y

2. The combination kwith. a lock having 'slots in its upper and loweredges, of a keeper, a bolt operatively mounted in the lock to engage thekeeper, and apair of swinging bolts mounted in the keeper andkstantially parallel tothe end plate of the lock when swung intoengagement with said slot and serving to bind the keeperV and *locktogether.

4. The combination with a lock, of a keeper, a sliding bolt operativelymounted in` the lock to be projected into the keeper, a pair of swingingbolts pivoted 'in the keeper and extending in opposite directions, lugson said swinging bolts lextending into the pathof the sliding boltwhereby said` swinging bolts will be projected into engagement with thelock when said sliding bolt is projected into thekeeper, andfmeans forretractin saidV swinging bolts into." the keeper w en the sliding vboltis retracted `into the lock. j

5. The combination with a lock having a horizontal face provided with aslot, of a keeper, a bolt operatively mounted in the lock to engage thekeeper, a hook-shaped bolt pivoted in the keeper and adapted to beprojected into engagement with said slot in the lock when the slidingbolt is projected, and a projection on said horizontal face of the lockin front of said slot for masking the latter. f

6. The combination with a lock having slots in its upper and loweredges, of a keeper, a bolt operatively mounted in the lock to engage thekeeper, a pair of oppositely extending hook-shaped 'bolts pivoted in thekeeper and adapted to be projected into engagementwith said slots in thelock when the sliding bolt is projected into the keeper, and projectionson the upper and lower edges of the lock in front of said slots formasking the latter. j 1

7. The combination with a lock, of a keeper, a sliding bolt mounted inthe lock and adapted to be projected into engagement with the keeper, aroll back in the lock, and means for effecting a step by step movementof the bolt by a plurality of revolutions of said roll back. c'

8. The combination with a lock, of a keeper, a sliding bolt operativelymounted in the lock and ,adapted to be projected into engagement withthe keeper, a swinging bolt mounted in the keeper to be projected intoengagement with the lock when said sliding bolt is projected into thekeeper, a roll back in the lock, and means for effecting a'step by stepmovement of the sliding bolt by a plurality of revolutions of the rollback.

9. The combination with a lock, of a keeper, a sliding bolt operativelymounted in the lock and adapted to be projected into engagement withlthe keeper, there being a plurality of notches in said bolt, and a rollback adapted to successively engage said notches'during a plurality ofrevolutions for effecting a step by step movementY of said bolt.

10. .The combination with alock, of a keeper, a sliding bolt operativelymounted engagement with the keeper, there being a plurality of notchesin the bolt, andA two notches in a separate series for effecting a stepby step movement of the bolt.

keeper, a sliding bolt operatively mountedin the lock and adapted to beprojected into engagement with the keeper, apair of roll backs arrangedout of line with-one another in the lockand adapted to be operated fromopposite sides of vsaid lock, and` means whereby either roll back mayactuate the lock independently of the `other roll back.

13. The combination with a lock, of a keeper, a sliding bolt operativelymounted in' the lock and adapted to be projected into engagement withthe keeper, there bein-gtwo 12. The combination with a lock, of aVnotches of different widths in said bolt, and two roll backs adapted tobe operated from opposite sides of the lock, said roll backs being ofdifferent 'widths to correspond to the different widths of said notches,

whereby the wider roll back cannot enterv the narrower notch.

14. The lcombination with a lock, of a i" keeper, av bolt operativelymounted in the lock to engage/the keeper, and a pair of hook-shapedbolts in the keeper to engage opposite edgesof the lock, the free endsof said hook-shaped bolts being substantially vvvertical when swung intoengagement with the lock andserving to bind saidkeeper and locktogether. 1

In testimony whereof I have signed my Vname to this specification.

MORRIS FORLANDER.

